You've seen 起来 (qilai) tacked onto the end of verbs, and it didn't bother you at first. But then you started noticing it doing different things in different circumstances (and with different verbs), and you probably started wondering what is going on with this complement. This lesson breaks it down and explains the four main cases, while also referencing an older Qing Wen: Using 看 (kàn) and 看起来 (kàn qilai).